Hire Top Vetted Web Engineering Engineers at Upstaff - Page 3
All vetted software engineers you need to build AI, Web3, and data Products.
- Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
- Europe, Israel, LatAm, United States, Asia geography coverage
- Remote and hybrid engagement
- Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
With proficiencies in Angular, ASP.NET Core, and real-time web applications, this senior full-stack developer's expertise encompasses scalable solutions for international fintech and civic tech sectors. Integral in crafting trading platforms and logistics tracking systems, they exhibit exceptional skill in front-end design, API integration, and performance optimization for robust reporting systems. An adeptness in Agile practices, paired with a Master's degree in Computer Science, positions this developer as a versatile asset. They bring a track record of successful cross-functional collaboration within distributed teams.
Accomplished junior web developer with a recent graduation from Telerik Academy and expertise in JavaScript and React, demonstrating both front-end and full-stack capabilities. Strong technical foundation displayed through impactful projects utilizing modern technologies such as Next.js, Tailwind CSS, PostgreSQL, and Firebase. Effective at independent work, as shown by rapid skill acquisition in welding transformed into disciplined software development, with a proven track record of mastering new technologies swiftly. An efficient teamwork contributor, evidenced by the successful collaborative development of complex web applications. Recognized for excellence in both academic achievements and practical application, ready to bring skills to a dynamic team.
The software engineer in question boasts an impressive 5+ years of proven experience primarily as a Golang developer, exhibiting deep expertise in technologies such as Postgres, Kafka, Redis, and frameworks like Gin and Echo. A history of engaging with complex logistics and social platforms showcases this engineer's strengths in microservices architecture, full SDLC involvement, and proficiency with Docker and Kubernetes for containerization and orchestration. Their technical acumen is further evidenced by successful projects like the integrative 'AxleApi' and the innovative 'ConnectUp', demonstrating the capability to lead architecture design and to implement robust solutions. Their role often extends beyond coding to include mentoring peers, reviewing code for quality assurance, and contributing to deployment strategies, encapsulating a well-rounded engineering skill set for modern software development environments.
Software Engineer with over 4 years of experience at Tacktile Systems, excelling in full-stack Java and Android development, database optimization, and AI-enhanced productivity. Proficient in developing secure, performant RESTful APIs, and dynamic web reporting tools. Innovates using AI tools such as ChatGPT and Cursor AI to expedite development processes. Demonstrates expertise in Java, Spring Boot, RabbitMQ, SMTP2GO, Sentry, JSP, AJAX, JavaScript, and Android SDK, Code Refactoring, MVVM architecture ensuring robust and scalable software solutions.
Seasoned Mobile App Developer with over a decade of experience, specializing in UI/UX design, native mobile app development, and AI-driven applications. B.Tech in IT from Delhi Technical University and possesses significant freelance success with 10,000+ hours on Upwork. Entrepreneurial background includes co-founding two startups, with a notable exit from a peer-to-peer lending platform. Strong technical proficiencies in JavaScript, React Native, and web development with certification in Full Stack Web Development. Adept in enhancing product value through integration of advanced features like 3D animations and Bluetooth device connectivity. Demonstrated expertise in SDLC and modern development practices, catering to a diverse clientele with over 30 mobile app projects delivered.
An experienced Full Stack Developer with a strong background in Python, Django, and microservices. With 3+ years of industry experience, the engineer has a proven track record of designing, developing, and deploying scalable web applications across various platforms. Expertise includes backend development, cloud platform integrations with AWS and Azure, and containerization with Docker. The candidate has a robust engineering education with a BSc in Electrical Engineering and an MS in Cyber Security, reinforcing a solid foundation in software development and security. Key achievements include successfully deploying Jenkins for CI/CD, building real-time communication applications using Django Channels and Websockets, and optimizing cloud infrastructure for performance and reliability. This profile boasts advanced knowledge in CI/CD pipelines, Kubernetes orchestration, full-text search integration using Elasticsearch, and payment gateway integrations.
- Experienced Full-Stack Software Developer with 14+ years in commercial IT, with deep expertise in C#/.NET for server-side solutions - Extensive hands-on experience in modern frontend development using JavaScript, TypeScript, and frameworks like React. - Proven ability to engineer scalable architectures, design and implement efficient RESTful APIs, real-time communication layers (SignalR, WebRTC), and robust business logic for complex enterprise systems. - Advanced in building responsive, maintainable client-side interfaces (SPA/SPA-PWA) and integrating UI with backend services using modern web standards (HTML5, CSS3, Bootstrap). - Strong background in relational database design and performance tuning (MS SQL Server, Oracle, MySQL), ORM frameworks (Entity Framework, NHibernate), and cloud integration (Azure). - Track record of delivering high-quality, maintainable code in dynamic domains including Media & Entertainment, Manufacturing, Healthcare, Energy, Industrial Automation, and Retail. - Analytical, proactive, and collaborative — always driving for maximum business value and technical excellence on both frontend and backend.
Software engineer with over 10 years of experience, specializing in web accessibility and backend development. Holds professional working proficiency in English and native level Ukrainian, with understanding of Polish and basic German. Holds Deque University certifications, showcasing depth in web accessibility knowledge. Successful track record in leading the web accessibility audit & design team and founding Inclusive IT, a company dedicated to testing websites for WCAG 2.1 standards. Technical contributions include valid cross-browser HTML/CSS coding. Experience also includes managing inclusive education projects and developing software solutions with C++, Qt, and Python/Django.
- 9+ years of experience as a full-stack developer with a focus on .NET technologies. - Expertise in C#, .NET Framework, .NET Core, and Entity Framework, with a proven ability to design and implement robust, scalable solutions. - Strong front-end development skills using React, Angular, JavaScript, and jQuery, and proficient in database management with MS SQL Server. - Developed a cryptocurrency detection and analysis system using F# and functional programming principles to identify and filter scam tokens in real-time. - Extensive experience with AWS services (Lambda, RDS, S3, API Gateway, CloudWatch) to architect and deploy serverless, cloud-native applications. - Hands-on experience integrating with a variety of third-party APIs, including Etherscan, Copart, and AWS. - Skilled in all phases of the software development lifecycle, including project planning, system design, feature development, and maintenance. - Bachelor's Degree in Cybersecurity with a focus on secure development practices.
- Software engineer with over 8 years of full-stack web development experience, showcasing a solid background in advanced technologies including C#, .NET (Core), ASP.NET, Entity Framework, Angular, React and Azure. - Has successfully developed and implemented several complex applications across various domains, including logistics, government assistance, fintech, and corporate communications. - Track record includes initiating a logistic company's application that strategically optimizes routing and delivery tracking and spearheading the development of a payment system gateway integrating multiple banks. - Acknowledged for a technical breadth encompassing complete project lifecycle expertise from database design to cloud infrastructure configuration and a commitment to quality through extensive unit testing and code coverage.
- Accessibility SME with DHS Trusted Tester and NVDA certifications and an IAAP CPWA credential, possessing over a decade of accessibility consulting experience. - Deep expertise in WCAG, Section 508, and ADA compliance, as well as in utilizing and testing with major assistive technologies like NVDA, JAWS, VoiceOver, and TalkBack. - Extensive background in developing and implementing accessibility standards, including Microsoft Accessibility Standards (MAS) and design systems for inclusive user experiences. - Proficient in web, mobile, and desktop application testing across various platforms (iOS, Android, Windows, macOS) and in leveraging assistive technologies for accessibility testing. - Proficient in front-end technologies including ARIA, HTML, CSS, JavaScript, and skilled in conducting both manual and automated testing with tools such as axe, Lighthouse, WAVE. - Holds a B.A. in Home Economics with an A.S. in Computer Science, reflecting a strong foundation in both technology and systematic problem-solving.
Accomplished Cloud Developer & DevOps Engineer with over 5 years of experience specializing in AWS services and serverless technology. Proficient in automating and optimizing back-end systems using TypeScript, Node.js, and cloud-native platforms, with a record of reducing execution time and costs in AWS environments. Extensive knowledge of infrastructure-as-code and CI/CD tools, including Terraform and GitHub Actions. Bachelor in Computer Science with a strong background in designing fault-tolerant architectures, asynchronous messaging patterns, and implementing DevOps practices to enhance software delivery. Holds multiple certifications including AWS Certified Solutions Architect - Associate and AWS Certified Security - Specialty.
- Front-end Developer with 8+ years of experience and expertise in creating scalable and high-performance web and mobile applications. - Proficient in React, Next.js, NodeJS, and Nest.js. Demonstrates strong leadership through active involvement in architecture planning, code reviews and mentoring teams. - Skilled in developing adaptive UI components, optimizing application performance and seamlessly integrating backend services using modern technologies such as JavaScript,TypeScript. - Proficient in establishing efficient CI/CD pipelines, enhancing SEO performance and employing advanced analytics tools for continuous improvement. - Passionate about delivering exceptional user experiences, driving continuous optimization and ensuring robust, scalable software solutions.
Innovative Full Stack Web Developer with 6+ years of experience building responsive web applications and 3+ years delivering decentralized applications (dApps) across EVM and non-EVM chains. Proven ability to integrate smart contracts, optimize wallet connectivity (ConnectKit, wagmi, Viem), and deploy scalable backends on AWS. Strong foundation in JavaScript/TypeScript, React, Node.js and DeFi protocols like Uniswap, Aave, and Curve. Experienced in secure, performant infrastructure design across both centralized (AWS) and decentralized (IPFS, Fleek) environments.
● Languages: JavaScript, HTML, CSS, SASS ● Libraries: React, Redux, React Material UI ● Unit-tests: Jest, Enzyme, React Testing Library ● Tools: Storybook, Cucumber ● Data approaches: REST API, GraphQL, Ajax ● Databases: MongoDB, MySQL ● Platforms: Node.js ● CMS: Adobe Experience Manager v6.5 ● Project systems: Webpack, GULP ● Version control: Mercurial, Git ● Protocols: HTTP, HTTPS, TCP/IP suite background ● Main OOP principles, classes and hooks approaches ● Familiarity with Docker (deployment on AWS services) ● Linux operating system (user level) ● Skills in Adobe Photoshop (for markup purposes) ● Experience in SEO optimisation and content editing
Backend Software Engineer with over 8 years of experience, specializing in Python, Go, and cloud-native technologies. Expert in API development, system architecture, and integrating distributed systems within research, regulated, and blockchain fields. Proficient in Python, Go, SQL, Docker, Kubernetes, AI/ML tools, and cloud services (GCP, AWS). Has led backend development for decentralized applications, real-time monitoring, file-sharing systems, and automated SDLC focusing on security and performance. Demonstrates proficiency in DevSecOps, regulatory compliance, and modern backend frameworks.
Software Engineer with 3+ years expertise in full-stack development, focusing on backend and API integrations. Proficient in Python and JavaScript, with strong experience in Django, Django REST Framework, and FastAPI. Comprehensive knowledge of relational and NoSQL databases, with advanced skills in MySQL. Demonstrable success deploying scalable web solutions on AWS with Docker and maintaining codebases with Git. Practical application of Agile/Scrum methodologies, and a proven track record of producing maintainable, well-documented code for data-driven applications, automated systems, and AI-powered tools. Holds a Bachelor's degree in Computer Science and multiple certifications, showcasing a commitment to professionalism and continuous learning in software engineering.
- 12+ years of experience in full-stack software development with a strong focus on .NET Core, C#, and Microsoft Azure ecosystem; - Built complex enterprise applications and scalable microservices architectures using ASP.NET Core, Azure Functions, Docker, RabbitMQ, and MS SQL Server; - Developed cross-platform web and mobile applications using React, React Native, and Node.js for industries including healthcare, logistics, education, social networking, and B2B platforms; - Built native apps on Windows, macOS, iOS, and Android with .NET Multi-platform App UI - Designed and integrated REST APIs and real-time messaging features for high-performance systems; - Delivered cloud-native solutions with Azure Web Apps, Azure Storage, CI/CD pipelines, and microservice orchestration; - Applied best practices in code quality, performance optimization, and agile software development; - Led architecture design, team collaboration, and technical mentorship across multiple full-cycle delivery projects; - Experienced in building customer-centric solutions, data-driven dashboards, and scalable CRM-like platforms.
Software Engineer with a Master's from Sharif University of Technology, specializing in machine learning and predictive modeling, particularly in blockchain data analysis. Technical skill set includes Python, JavaScript, SQL, along with frameworks like Django and FastAPI, and tools such as Docker and Git. Proven expertise in data analysis, machine learning, and web development, with experience designing RESTful API and backend systems. Adept at leveraging modern databases like PostgreSQL, MongoDB, Redis, and implementing agile methodologies for efficient software development. Key projects demonstrate strong capabilities in data pipeline construction, machine learning model development, and creative solution engineering for complex challenges.
Software Engineer with over 15 years of experience, possessing a Bachelor's degree in Mechanical Engineering and Computer Science. Expertise includes Java, JavaFX, RESTful APIs, multithreading, and UI frameworks. Established track record in database optimization and system integration, having resolved critical memory leaks and threading issues, and refactoring database layers for increased performance. Proficient in Agile SDLC, with a successful transition from SVN to Git. Key projects include developing utility applications for certified election result dissemination and performance enhancements in complex software systems.
Technical Manager with over 15 years of experience in the IT industry, excelling in web application development and leadership roles. Expert in PHP, Node.js, and JavaScript, with a strong background in database management using MySQL and PostgreSQL. Highly adept in IoT applications, leveraging tools like GeoServer for spatial data management. Maintains a deep understanding of the software development life cycle (SDLC), agile methodologies, and client management. Demonstrates solid technical project management skills, aligning business objectives with innovative technical strategies. Holds an MSc in IT with outstanding academic achievements, underpinned by a solid foundation in programming languages and software engineering principles.
- .NET Software Engineer with 4 years of software development experience in different domains (FinTech, Real Estate, E-Commerce). - The biggest part of the experience is related to the .NET platform - Upper-Intermediate English - Available from 11.07.2022
Software Engineer skilled in PHP and Python for back-end development and web scraping, with experience in C++, Linux, Docker, and Git. History of developing APIs and data parsers, with expertise in server management and CMS module implementation. Holds a Software Engineering Associate Degree with focus on core computer science principles. Contributions include a C++ Tic-Tac-Toe project, showcasing proficiency in OOP and game development. Adept in multiple database systems and modern web technologies, with a strong foundation in SDLC and code refactoring.
Full Stack Web Developer with 8 years of experience specializing in web technologies and scalable microservices architectures. Expertise in RESTful APIs, GraphQL, front-end and back-end frameworks, and cloud infrastructures, particularly with AWS services. Profound knowledge of programming languages including JavaScript, TypeScript, PHP, Ruby, and SQL. Proven track record in handling low to medium complexity projects throughout the full software development lifecycle. Technical skills encompass working with diverse databases, implementing CI/CD with AWS tools and Jenkins, containerization with Docker, and blockchain technologies like Web3 and smart contracts. Holds a Master's Degree in Applied Mathematics and Informatics, reflecting a solid engineering background.
Accomplished Software Architect and Hands-on Engineering Manager with a strong history of building, leading, and mentoring cross-functional teams in designing, developing, and deploying high-scalability, secure software solutions leveraging cloud platforms, microservices architectures, CI/CD pipelines, and performance optimization strategies. Experienced in both startup environments and well-established organizations, with expertise in architecting reliable distributed systems, implementing best practices, and driving innovation while delivering quality software.
- 12 years of experience in backend development, including leadership roles in cross-functional teams; - Expertise in Scala, Python, and Java (with knowledge of functional programming principles); - Experience in system architecture improvements, leading teams, and developing scalable solutions; - Expertise in PostgreSQL, Oracle DB, MongoDB, and SQL; - Cloud environments such as AWS including performance and scalability optimization; - Docker and Kubernetes for container orchestration; - Apache Kafka for building event-driven architectures; - Led AI-driven projects in areas such as resume parsing, payroll automation, and learning management;
We have an exceptional full-stack developer with over 10 years of specialized Salesforce experience, particularly strong in B2C Commerce solutions. This candidate has successfully delivered enterprise e-commerce platforms for clients across multiple industries, handling both complex back-end architecture and user-facing front-end development.Key Qualifications for Your Project Salesforce Expertise: Extensive experience across Service Cloud, Sales Cloud, Financial Services Cloud, Communications Cloud, and Marketing Cloud, enabling comprehensive platform integration. B2C Commerce Specialization: Proven track record in building custom integration solutions, including SFTP server connections, third-party service frameworks, LINK integrations, and payment processor cartridges for Adyen and Rakuten. Leadership Background: Brings valuable management experience from the power generation industry and e-commerce business ownership, providing both technical depth and business perspective. Team Collaboration: Known for maintaining calm under pressure, inspiring team members, and delivering results in both small agile teams and large enterprise environments. This developer combines deep technical expertise with strong communication skills and a collaborative approach, making them an ideal fit for complex Salesforce B2C Commerce implementations.
The engineer is a proficient Full-Stack Developer and R&D Engineer with a core focus on cutting-edge technologies encompassing JavaScript, TypeScript, Python, SQL, and C++. They have demonstrated expertise in frameworks and technologies like NestJS, Node.js, React.js, Next.js, Blockchain, and Cosmos SDK, coupled with strong database skills in PostgreSQL, MySQL, Redis, and LevelDB. With extensive hands-on experience in DevOps & tooling such as Docker, Git, Linux, Prometheus, and Grafana, the engineer has successfully designed and developed high-availability full-stack applications. Their professional experience includes leading feature development to shorten time-to-market and significantly improving system performance and stability through strategic optimizations. The engineer's deep understanding of RESTful APIs, microservices architecture, and workflow orchestration underscores a commitment to technical excellence in software development practices. Notable achievements include architecting critical blockchain integrations and real-time data streaming functionalities for varied user-intensive platforms. Holding a B.Tech in Computer Science from Medicaps University with a notable academic record further anchors their theoretical understanding and practical application of software engineering principles, securing the foundation for continued professional growth and contribution to technology innovation.
Senior PHP Back-end Developer with a strong background in computer science and extensive expertise in the Laravel and Symfony frameworks, boasting over 15 years in the industry and mastery in full-stack technologies. Proficient in database management with MySQL and PostgreSQL, and skilled in the use of design patterns, SOLID principles, and OOP to enhance software architecture and code quality. Demonstrates advanced knowledge in implementing and optimizing REST APIs, Kafka message brokering, and pioneering large-scale data operations. Experienced in fostering agile and TDD methodologies to drive continuous integration and delivery, underscoring technical leadership through mentorship and development of innovative web applications.
Accomplished Senior React Native Developer with a solid 7-year track record in mobile application development, underpinned by a bachelor's degree in Computer Science and Engineering. Expert command of React Native, JavaScript, and TypeScript, complemented by proficiency in leveraging ancillary technologies such as Redux, Firebase, and RESTful services. Demonstrated prowess in modern software engineering practices, including unit testing, code reviews, SDLC, and agile methodologies. Adept at fostering junior developers' growth while navigating complex project ecosystems and enhancing app performance and user experience, distinguishing themselves as a potent candidate for technology-driven roles.
A senior software engineer with over 6 years of full-stack experience specializing in React, TypeScript, and Node.js. This engineer has a proven track record of enhancing user engagement and retention through innovative UI design and application development. Their technical proficiency is demonstrated by significant contributions to a SaaS startup, including a 20% customer retention increase, and internal tooling that improved staff participation and satisfaction. Holding a Bachelor's in Computer Science and pursuing an Executive MBA with an AI specialization, they combine strong educational foundations with practical expertise in JavaScript frameworks, API integrations, and developing scalable, performance-optimized features. Strategic projects like the AI-powered skill assessment app illustrate their ability to leverage cutting-edge technologies to deliver impactful solutions.
Experienced Software Engineer with over 14 years of commercial development experience. Strong expertise in object-oriented programming, full-stack development, and cloud architecture. Proven leadership in managing both small and large engineering teams. Committed to delivering high-quality, scalable, and efficient software solutions across diverse platforms.